lagoon-images v21.6.0

[tobybellwood]

Changes in this release

• use better terminology for default images @tobybellwood (#230)
• Update alpine images to 3.13 @tobybellwood (#167)
• add rabbitmq images to lagoon-images @tobybellwood (#198)
• use github for mysqltuner @tobybellwood (#219)
• version mariadb images @tobybellwood (#216)
• Update php Docker tag to v8.0.7 (main) @renovate (#229)
• Update php Docker tag to v7.4.20 (main) @renovate (#222)
• Update composer Docker tag to v2.1.1 (main) @renovate (#228)
• Update composer Docker tag to v2.1.0 (main) @renovate (#220)
• Update Node.js to v16.3 (main) @renovate (#223)
• Update postgres Docker tag to v12.7 (main) @renovate (#204)
• Update postgres Docker tag to v11.12 (main) @renovate (#203)
• Update ELK Stack Docker tags (main) (patch) @renovate (#179)
• Update rabbitmq Docker tag to v3.8.16 (main) @renovate (#226)

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This discussion was created from the release v21.6.0.